Cleaning gun with gun head convenient to replace

Abstract

The utility model belongs to the technical field of car washing water guns, and particularly relates to a cleaning gun with a gun head convenient to replace, which comprises a gun body and a spray head main body, a water conveying pipe is arranged on the gun body, a spray head connector is arranged at the end of the water conveying pipe, a T-shaped groove is arranged on the spray head connector, a fastening mechanism is arranged in the T-shaped groove, and the fastening mechanism comprises a U-shaped sliding block. A guide groove is further formed in the T-shaped groove, the U-shaped sliding block is connected into the guide groove in a sliding mode, the rack is fixedly connected to the bottom of the U-shaped sliding block, a rotating shaft is fixedly connected to the gear, the middle of the rotating shaft is rotationally connected to the nozzle connector, one end of the rotating shaft penetrates and extends out of the T-shaped groove, and the other end of the rotating shaft is fixedly connected to the U-shaped sliding block. The pneumatic cylinder car washing device is used for solving the problems that a spray head of an existing pneumatic cylinder car washing device is inconvenient to replace, and the spray head and a water conveying pipe are not stably connected after the pneumatic cylinder car washing device is used for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of car washing water guns, and in particular relates to a cleaning gun which is convenient for replacing the gun head. Background Art

[0002] With the development of society and the continuous improvement of life, cars have become the main means of our daily travel. With the increasing number of cars, the car wash industry has also entered a stage of rapid development. In order to adapt to the national conditions of energy conservation and environmental protection, although there are more water-saving air pressure cylinder car washers on the market, their structures are more complicated, and the nozzles are directly connected to the water pipes, which will not only accelerate the aging of the equipment and affect its service life, but also make it inconvenient to replace. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a cleaning gun with an easy-to-replace gun head, so as to solve the problem that the existing pneumatic cylinder car washer is inconvenient to replace the nozzle and the connection between the nozzle and the water pipe is unstable after long-term use.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A cleaning gun that is easy to replace the gun head, comprising a gun body and a nozzle body, the gun body is provided with a water pipe, the end of the water pipe is provided with a nozzle interface, the nozzle interface is provided with a T-shaped groove, a fastening mechanism is provided in the T-shaped groove, the fastening mechanism comprises a U-shaped slider, a gear and a rack, the T-shaped groove is also provided with a guide groove, the U-shaped slider is slidably connected in the guide groove, the rack is fixedly connected to the bottom of the U-shaped slider, a rotating shaft is fixedly connected to the gear, the middle part of the rotating shaft is rotatably connected to the nozzle interface, one end of the rotating shaft extends to the outside of the T-shaped groove, and the gear and rack are installed in coordination.

[0006] Furthermore, an anti-slip mechanism is provided on the rotating shaft, and the anti-slip mechanism includes a ratchet and a pawl, the ratchet is fixedly connected to the rotating shaft, the pawl is rotatably connected to the outer wall of the nozzle interface and is located above the ratchet, and the ratchet and the pawl are installed in coordination.

[0007] Furthermore, the nozzle body includes a connecting portion and a spraying portion, and the shape of the connecting portion is the same as the shape of the T-slot.

[0008] Furthermore, a rotary flow control valve is provided in the middle of the water delivery pipe, and a water pipe interface is also provided on the gun body.

[0009] Furthermore, a sealing ring is provided at the connection point between the T-shaped groove and the water pipe.

[0010] Furthermore, a rubber sleeve is provided on the handle of the gun body.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By inserting the connection part of the nozzle body into the T-slot, and then pushing the connection part to squeeze the sealing ring through the fastening structure composed of the U-shaped slider, gear and rack, the connection between the nozzle body and the water pipe is made tighter to prevent water overflow from affecting the normal use of the cleaning gun. At the same time, the U-shaped slider limits the movement of the connection part of the nozzle body on three surfaces, further improving the stability of the connection of the nozzle body. The clamping and sealing connection of the connection part can be completed by simply rotating the shaft. The operation is simple and convenient, and the practicability is strong;

[0013] 2. The anti-slip mechanism composed of the ratchet and the pawl can easily control the U-shaped slider to move toward the connection part of the nozzle body, so that the connection part is stably and firmly connected in the T-slot to prevent loosening during use and affect the normal use of the cleaning gun;

[0014] 3. The water flow rate can be controlled by the rotary flow control valve, thereby saving water and improving energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the planar structure of an embodiment of a cleaning gun that is convenient for replacing the gun head of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of a nozzle interface in an embodiment of a cleaning gun for facilitating replacement of the nozzle head of the utility model;

[0017] Figure 3 This is a cross-sectional view of a nozzle interface in an embodiment of a cleaning gun that is easy to replace the nozzle of the utility model;

[0018] Figure 4 It is a schematic diagram of the planar structure of the anti-slip mechanism in an embodiment of a cleaning gun that is convenient for replacing the gun head of the utility model;

[0019] The reference numerals in the drawings of the specification include:

[0020] Gun body 1, water pipe interface 11, water delivery pipe 12, nozzle interface 13, T-slot 131, guide groove 1311, U-shaped slider 132, gear 133, rack 134, sealing ring 135, handle 14, rotary flow control valve 2, nozzle body 3, injection part 31, connecting part 32, anti-slip mechanism 4, ratchet 41, pawl 42, rotating shaft 5. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] Example:

[0024] like Figure 1-4 Specifically, a cleaning gun that is easy to replace the gun head includes a gun body 1 and a nozzle body 3, the gun body 1 is provided with a water pipe 12, the end of the water pipe 12 is provided with a nozzle interface 13, the nozzle interface 13 is provided with a T-shaped slot 131, the T-shaped slot 131 is provided with a fastening mechanism, the fastening mechanism includes a U-shaped slider 132, a gear 133 and a rack 134, the T-shaped slot 131 is also provided with a guide slot 1311, the U-shaped slider 132 is slidably connected in the guide slot 1311, the rack 134 is fixedly connected to the bottom of the U-shaped slider 132, the gear 133 is fixedly connected with a rotating shaft 5, the middle part of the rotating shaft 5 is rotatably connected to the nozzle interface 13, one end of the rotating shaft 5 extends to the outside of the T-shaped slot 131, and the gear 133 is installed in cooperation with the rack 134.

[0025] The rotating shaft 5 is provided with an anti-skid mechanism 4, which includes a ratchet 41 and a pawl 42. The ratchet 41 is fixedly connected to the rotating shaft 5, and the pawl 42 is rotatably connected to the outer wall of the nozzle interface 13 and is located above the ratchet 41. The ratchet 41 and the pawl 42 are installed in coordination.

[0026] The nozzle body 3 includes a connecting portion 32 and a spraying portion 31 . The shape of the connecting portion 32 is the same as that of the T-shaped slot 131 .

[0027] A rotary flow control valve 2 is provided in the middle of the water delivery pipe 12 , and a water pipe interface 11 is also provided on the gun body 1 .

[0028] A sealing ring 135 is provided at the connection point between the T-shaped groove 131 and the water pipe 12 .

[0029] A rubber sleeve is provided on the handle 14 of the gun body 1 .

[0030] In this embodiment, when in use, the connecting portion 32 of the nozzle body 3 is inserted into the T-shaped groove 131 until the bottom surface of the connecting portion 32 contacts the bottom surface inside the U-shaped slider 132, and the rotating shaft 5 is manually rotated counterclockwise, and the pawl 42 is driven by the ratchet 41 to rotate, so that the pawl 42 smoothly slides over the ratchet 41, and then the rotating shaft 5 drives the gear 133 to rotate. Under the transmission action of the gear 133 and the rack 134, the U-shaped slider 132 moves toward the connecting portion 32, and finally pushes the connecting portion 32 to squeeze the sealing ring 135, so that the connection between the nozzle body 3 and the water pipe 12 is tighter, and water overflow is prevented from affecting the normal cleaning of the cleaning gun. It is often used, and the U-shaped slider 132 limits the movement of the connecting part 32 of the nozzle body 3 on three surfaces, further improving the stability of the connection of the nozzle body 3. The clamping and sealing connection of the connecting part 32 can be completed by rotating the rotating shaft 5. The operation is simple and convenient, and the practicability is strong. When the nozzle body 3 needs to be replaced, the pawl 42 is manually rotated to disengage it from the ratchet 41, so that the obstruction of the pawl 42 to the ratchet 41 disappears, and the rotating shaft 5 can drive the gear 133 to rotate clockwise, so that the squeezing and clamping of the connecting part 32 by the U-shaped slider 132 disappears, and the nozzle body 3 can be removed by manually pulling out the connecting part 32.

[0031] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A cleaning gun that is easy to replace the gun head, comprising a gun body (1) and a nozzle body (3), characterized in that: The gun body (1) is provided with a water pipe (12), the end of the water pipe (12) is provided with a nozzle interface (13), the nozzle interface (13) is provided with a T-shaped groove (131), a fastening mechanism is provided in the T-shaped groove (131), the fastening mechanism comprises a U-shaped slider (132), a gear (133) and a rack (134), a guide groove (1311) is further provided in the T-shaped groove (131), the U-shaped slider (132) is slidably connected in the guide groove (1311), the rack (134) is fixedly connected to the bottom of the U-shaped slider (132), the gear (133) is fixedly connected to a rotating shaft (5), and the rotating shaft (1311) is provided with a rotating shaft (1311). The middle part of the rotating shaft (5) is rotatably connected to the nozzle interface (13), one end of the rotating shaft (5) extends to the outside of the T-shaped slot (131), and the gear (133) and the rack (134) are installed in cooperation; the rotating shaft (5) is provided with an anti-skid mechanism (4), and the anti-skid mechanism (4) includes a ratchet (41) and a pawl (42), the ratchet (41) is fixedly connected to the rotating shaft (5), the pawl (42) is rotatably connected to the outer wall of the nozzle interface (13) and is located above the ratchet (41), and the ratchet (41) and the pawl (42) are installed in cooperation; a sealing ring (135) is provided at the connection between the T-shaped slot (131) and the water delivery pipe (12).

2. A cleaning gun with easy-to-replace gun head as claimed in claim 1, characterized in that: The nozzle body (3) comprises a connecting portion (32) and a spraying portion (31), and the outer shape of the connecting portion (32) is the same as the shape of the T-shaped groove (131).

3. A cleaning gun with easy-to-replace gun head as claimed in claim 2, characterized in that: A rotary flow control valve (2) is provided in the middle of the water delivery pipe (12), and a water pipe interface (11) is also provided on the gun body (1).

4. A cleaning gun with easy-to-replace gun head as claimed in claim 3, characterized in that: A rubber sleeve is provided on the handle (14) of the gun body (1).

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